Home / 2,272.05-3,135.44-1,277.30

Finding the Fourth Proportional to 2,272.05, 3,135.44 and 1,277.30

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Solution

The fourth proportional to 2,272.05, 3,135.44 and 1,277.30 is: 1,762.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.05 : 3,135.44 = 1,277.30 : x
  2. Step 2: Convert to fraction form
    2,272.05/3,135.44 = 1,277.30/x
  3. Step 3: Cross multiply
    2,272.05x = 3,135.44 × 1,277.30
  4. Step 4: Simplify right side
    2,272.05x = 4,004,875.45
  5. Step 5: Solve for x
    x = 4,004,875.45/2,272.05
  6. Step 6: Final answer
    x = 1,762.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.